Whose Turn To Move:
 
  

The players move alternately.
The player with the higher card on his second pile begins.
A player can move a card from the first and second to the work spaces (left and right),
to the home piles (center) or to the opponent's pile.
Cards on the work spaces must be alternating red/black and descending.
Cards on the home piles must be ascending of the same suit.
A card, which is to be placed on the opponents pile, must be the next higher or lower card of the same suit.
If a player has no valid move, he takes one card from his first pile and moves it to his third pile.
After that the other player can move.
If there are no more cards on the first pile, the player takes all the cards from his third pile turns them around and moves them to the first pile and continues to play.
If a player has no more cards on the first and third pile, but cards on the second pile, which he can not play, then he must pass.
In this case click the 'Switch' button. The player wins who first has no more cards on his 3 piles.
There is an additional rule, which is sometimes used, but not implemented in this game version:
If there is a card in the work space, which could be moved to the home pile (by first moving other cards in the work space), then this card must be moved.
If a player does not do so and the opponent sees this, then the moving player has to take back all his moves, and the opponent continues to play and moves this card to the home pile.
In this case click also the 'Switch' button.
This can only be done when playing human vs. human, because the computer does not play with this rule.